Preparation for separate runtime builds on Mac. Added $build{runtime} = 0;

build/mac/BuildNGLayout.pl

@@ -48,6 +48,7 @@ $pull{mac} 			= 0;
 
 $build{all} 		= 1;				# turn off to do individual builds
 $build{dist} 		= 0;
+$build{runtime}		= 0;
 $build{stubs} 		= 0;
 $build{common} 		= 0;
 $build{intl} 		= 0;

build/mac/BuildNGLayoutDebug.pl

@@ -45,6 +45,7 @@ $pull{mac} 				= 0;
 $build{all} 			= 1;			# turn off to do individual builds, or to do "most"
 $build{most} 			= 1;			# turn off to do individual builds
 $build{dist} 			= 0;
+$build{runtime}			= 0;
 $build{stubs} 			= 0;
 $build{common} 			= 0;
 $build{intl} 			= 0;

build/mac/PullBuildNGLayout.pl

@@ -47,6 +47,7 @@ $pull{mac} = 0;
 
 $build{all} = 1;				# turn off to do individual builds
 $build{dist} = 0;
+$build{runtime} = 0;
 $build{stubs} = 0;
 $build{common} = 0;
 $build{intl} = 0;

build/mac/PullBuildNGLayoutDebug.pl

@@ -53,6 +53,7 @@ $pull{mac} = 0;
 $build{all} = 1;			# turn off to do individual builds, or to do "most"
 $build{most} = 1;			# turn off to do individual builds
 $build{dist} = 0;
+$build{runtime} = 0;
 $build{stubs} = 0;
 $build{common} = 0;
 $build{intl} = 0;

build/mac/TinderboxNGLayout.pl

@@ -47,6 +47,7 @@ $pull{mac} = 0;
 
 $build{all} = 0;
 $build{dist} = 0;
+$build{runtime}		= 0;
 $build{stubs} = 0;
 $build{common} = 0;
 $build{intl} = 0;

build/mac/TinderboxNGLayoutOpt.pl

@@ -47,6 +47,7 @@ $pull{mac} = 0;
 
 $build{all} = 1;
 $build{dist} = 0;
+$build{runtime}		= 0;
 $build{stubs} = 0;
 $build{common} = 0;
 $build{intl} = 0;